Compositions – Preservative agents – Anti-corrosion
Patent
1983-11-23
1985-08-27
Williams, Howard S.
Compositions
Preservative agents
Anti-corrosion
423266, 423339, B01J 1300, C01B 3314, C01B 3318, C01B 33141
Patent
active
045376999
ABSTRACT:
The present invention provides a process for improving the rheological properties of a suspension of precipitated silica by the addition of an aluminum compound, thereby producing a sprayable suspension or slurry with a pH of greater than 3.5, a solids content of at least about 15% by weight, which may be spray dried to form silica in either powder or microbead form. In a preferred embodiment, the aluminum compound added to the suspension is in the form of sodium aluminate.
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patent: 3007878 (1961-11-01), Alexander et al.
patent: 3208823 (1965-09-01), Baker et al.
patent: 3291626 (1966-12-01), Shurling et al.
patent: 3691089 (1972-09-01), Janson et al.
patent: 3755183 (1973-08-01), Fahn et al.
patent: 4036663 (1977-07-01), Williams et al.
Chemical Abstracts, vol. 81, No. 8, 26-08-197 4, p. 99, Resume No. 39081z: Dispersed Pigment Compositions Using Sodium Aluminate Without the Aid of a Dispersoid.
Rhone-Poulenc 175 MP Micropearl.
Ser. No. 314,485, filed Oct. 1981, by Ray et al.
Rhone-Poulenc Specialites Chimiques "Les Miroirs"
Williams Howard S.
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